I have never before seen six TTC buses (five pictured) queued at an intersection, not in service. I wonder if they’re preparing for blue night service, or subway replacement service on the Yonge subway line? Any ideas?

Five TTC buses sighted waiting at Yonge and Bloor at ~12:30 am on Tues Dec 14.

Update: Subway Replacement bus service between Bloor and Finch is in effect until Dec 19th, starting at 12:30 AM.